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  <script>


    console.log('[] === []  ----->  ', [] === []); //  new Array()
    console.log('[] === []  ----->  ', {} === {}); // new Object()


    // 浅比较只比较内存地址是否相同
    const list1 = [1, 2, 3]
    const list2 = [1, 2, 3]
    console.log('list1 === list2  ----->  ', list1 === list2);
  </script>



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